Configuration

Most projects can use href() without options. Pass an object when the route tree or generated files live somewhere else.

vite.config.ts

import { sveltekit } from "@sveltejs/kit/vite";
import { href } from "svelte-auto-href";
import { defineConfig } from "vite";

export default defineConfig({
	plugins: [
		href({
			routes_dir: "src/routes",
			output_dir: ".svelte-kit/svelte-auto-href",
			types_path: ".svelte-kit/types/svelte-auto-href/$types.d.ts",
		}),
		sveltekit(),
	],
});

Option	Default	Purpose
`routes_dir`	`src/routes`	SvelteKit route directory, relative to the Vite root or absolute.
`output_dir`	`.svelte-kit/svelte-auto-href`	Directory for `manifest.json` and `html-data.json`.
`types_path`	`.svelte-kit/types/svelte-auto-href/$types.d.ts`	Generated declaration file that augments href APIs.

Generated files are rewritten only when their content changes. Keeping the defaults places all output under .svelte-kit, where it follows SvelteKit's existing generated-file lifecycle.

If routes_dir does not exist yet, generation still succeeds with an empty manifest. This lets a new project start Vite before its first route is created.